EP1780585A3 - Diffuser für Hintergrundbeleuchtungseinheit und Methode der Produktion des Diffusers - Google Patents

Diffuser für Hintergrundbeleuchtungseinheit und Methode der Produktion des Diffusers Download PDF

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Publication number
EP1780585A3
EP1780585A3 EP06017430A EP06017430A EP1780585A3 EP 1780585 A3 EP1780585 A3 EP 1780585A3 EP 06017430 A EP06017430 A EP 06017430A EP 06017430 A EP06017430 A EP 06017430A EP 1780585 A3 EP1780585 A3 EP 1780585A3
Authority
EP
European Patent Office
Prior art keywords
diffuser
backlight unit
resin
layer
manufacturing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06017430A
Other languages
English (en)
French (fr)
Other versions
EP1780585A2 (de
Inventor
Kab Jin Hwang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP1780585A2 publication Critical patent/EP1780585A2/de
Publication of EP1780585A3 publication Critical patent/EP1780585A3/de
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G02B5/0226—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures having particles on the surface
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/0236—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element
    • G02B5/0242—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element by means of dispersed particles
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0273—Diffusing elements; Afocal elements characterized by the use
    • G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133604—Direct backlight with lamps
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0051—Diffusing sheet or layer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
EP06017430A 2005-10-27 2006-08-22 Diffuser für Hintergrundbeleuchtungseinheit und Methode der Produktion des Diffusers Withdrawn EP1780585A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020050101867A KR100721009B1 (ko) 2005-10-27 2005-10-27 복수의 확산시트를 포함하는 백라이트 장치 및 이를 포함하는 액정 표시 소자

Publications (2)

Publication Number Publication Date
EP1780585A2 EP1780585A2 (de) 2007-05-02
EP1780585A3 true EP1780585A3 (de) 2007-05-16

Family

ID=37744552

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06017430A Withdrawn EP1780585A3 (de) 2005-10-27 2006-08-22 Diffuser für Hintergrundbeleuchtungseinheit und Methode der Produktion des Diffusers

Country Status (4)

Country Link
US (1) US7722225B2 (de)
EP (1) EP1780585A3 (de)
KR (1) KR100721009B1 (de)
TW (1) TWI354156B (de)

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TWI289708B (en) 2002-12-25 2007-11-11 Qualcomm Mems Technologies Inc Optical interference type color display
US7342705B2 (en) 2004-02-03 2008-03-11 Idc, Llc Spatial light modulator with integrated optical compensation structure
CN101600901A (zh) 2006-10-06 2009-12-09 高通Mems科技公司 集成于显示器的照明设备中的光学损失结构
US8872085B2 (en) 2006-10-06 2014-10-28 Qualcomm Mems Technologies, Inc. Display device having front illuminator with turning features
US8068710B2 (en) 2007-12-07 2011-11-29 Qualcomm Mems Technologies, Inc. Decoupled holographic film and diffuser
KR101476181B1 (ko) * 2008-01-07 2014-12-30 엘지전자 주식회사 Ｌｅｄ를 포함한 소프트 터치 센서
WO2010126184A1 (ko) * 2009-04-29 2010-11-04 도레이새한 주식회사 엘시디 백라이트유니트용 마이크로렌즈 배열 시트
WO2010126183A1 (ko) * 2009-04-29 2010-11-04 도레이새한 주식회사 엘시디 백라이트유니트용 복합 시트
JP2011029146A (ja) * 2009-06-26 2011-02-10 Sony Corp バックライト、および液晶表示装置
KR101290585B1 (ko) * 2009-12-15 2013-07-30 엘지디스플레이 주식회사 투명표시소자
KR101149848B1 (ko) * 2010-05-18 2012-05-25 주식회사 세일하이텍 Ｌｅｄ 백라이트 유닛용 집광필름
US20130328943A1 (en) * 2012-06-12 2013-12-12 Qualcomm Mems Technologies, Inc. Diffuser including particles and binder
US20130328838A1 (en) * 2012-06-12 2013-12-12 Qualcomm Mems Technologies, Inc. Diffusers for different color display elements
JP5843024B1 (ja) * 2014-08-22 2016-01-13 大日本印刷株式会社 表示装置
JP2017027872A (ja) * 2015-07-27 2017-02-02 ソニー株式会社 表示装置
KR101696553B1 (ko) * 2015-09-30 2017-01-16 엘지디스플레이 주식회사 액정 표시장치
US10546979B2 (en) * 2017-05-31 2020-01-28 Innolux Corporation Display device and lighting apparatus
US10497842B2 (en) 2017-05-31 2019-12-03 Innolux Corporation Display device and lighting apparatus
WO2020023583A1 (en) * 2018-07-24 2020-01-30 Nanosys, Inc. Methods of improving efficiency of displays using quantum dots with integrated optical elements

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6771335B2 (en) * 2000-05-16 2004-08-03 Kimoto Co., Ltd. Light diffusion sheet

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
JPH08220311A (ja) * 1995-02-16 1996-08-30 Sekisui Chem Co Ltd 光拡散シート
JP3040705B2 (ja) * 1995-12-20 2000-05-15 株式会社麗光 光拡散シート用樹脂微粒子および光拡散シート
JP4101339B2 (ja) * 1997-09-25 2008-06-18 大日本印刷株式会社 光拡散フィルム、その製造方法、拡散層付偏光板及び液晶表示装置
JP2000275742A (ja) * 1999-03-24 2000-10-06 Mitsubishi Rayon Co Ltd 透過型スクリーン
US6596375B2 (en) * 2000-03-23 2003-07-22 Tomoegawa Paper Co. Optical sheet and production process thereof
JP2001324607A (ja) * 2000-05-16 2001-11-22 Kimoto & Co Ltd 光拡散性シート
TWI299419B (en) * 2000-05-31 2008-08-01 Nitto Denko Corp Liquid crystal cell substrate and liquid crystal displays
KR100683354B1 (ko) * 2000-12-06 2007-02-15 닛토덴코 가부시키가이샤 수지 시이트, 이의 제조 방법 및 액정 표시 장치
JP2002243921A (ja) 2001-02-16 2002-08-28 Fuji Photo Film Co Ltd 光拡散フイルムの製造方法および光拡散フイルム
JP5054872B2 (ja) * 2001-02-22 2012-10-24 恵和株式会社 光拡散シート及びこれを用いたバックライトユニット
TWI276861B (en) * 2001-03-07 2007-03-21 Nitto Denko Corp Liquid crystal cell substrate, the method of producing the same and the liquid crystal display using the same
JP3686348B2 (ja) * 2001-04-10 2005-08-24 株式会社巴川製紙所 光学フィルムおよびその製造方法
WO2003067287A1 (fr) * 2002-02-08 2003-08-14 Dai Nippon Printing Co., Ltd. Film antireflet et afficheur d'images
KR20040074789A (ko) * 2003-02-19 2004-08-26 삼성전자주식회사 백라이트 어셈블리 및 이를 갖는 액정표시장치

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6771335B2 (en) * 2000-05-16 2004-08-03 Kimoto Co., Ltd. Light diffusion sheet

Also Published As

Publication number Publication date
KR20070045509A (ko) 2007-05-02
EP1780585A2 (de) 2007-05-02
TWI354156B (en) 2011-12-11
TW200717107A (en) 2007-05-01
US7722225B2 (en) 2010-05-25
KR100721009B1 (ko) 2007-05-22
US20070097695A1 (en) 2007-05-03

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